<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>lesson 19</title>
    <script src="https://unpkg.com/vue@next"></script>
</head>

<body>
    <div id="root"></div>
</body>

</html>
<script>
    const app = Vue.createApp({
        data() {
            return {
                count: 1,
                count1: 1
            };
        },
        methods: {
            handleCountOneChange(count) {
                this.count1 = count
            }
        },
        template: `
            <counter v-model="count" :count="count1" @change-count-one="handleCountOneChange"/>    
        `
    });

    app.component('counter', {
        props: ["modelValue", "count"],
        methods: {
            handleClick() {
                this.$emit('update:modelValue', this.modelValue + 3);
            },
            handleClick1() {
                this.$emit('update:modelValue', this.count + 3);
            },
        },
        template: `
              <div @click="handleClick">{{modelValue}}</div>
              <div @click="handleClick1">{{count}}</div>
        `
    })
    const vm = app.mount("#root")
</script>